摘要:
In a voltage detection device for a transforming apparatus, a voltage divider is constituted by providing an intermediate electrode between a central conductor and a tank of the transforming apparatus, to detect a voltage E1 of the central conductor based on a voltage E2 of the voltage divider. The voltage detection device for a transforming apparatus includes an incomplete integration circuit having a reverse characteristic to an input/output voltage amplitude ratio-frequency characteristic of a high-pass filter formed by a floating electrostatic capacitance between the central conductor and the intermediate electrode, an earth electrostatic capacitance between the intermediate electrode and the tank, and a voltage dividing resistor connected in parallel to the earth electrostatic capacitance, and a signal processing circuit that outputs a value based on an output voltage E3 of the incomplete integration circuit as the voltage E1 of the central conductor.
摘要:
A voltage detection device is such that an intermediate electrode is provided between a central conductor to which a voltage is applied and a grounded tank to constitute a voltage divider and detects a voltage of the central conductor on the basis of a voltage of the voltage divider. The voltage detection device includes an integration circuit to which a voltage of the voltage divider, which is an output of the voltage divider, is input, an analog circuit that amplifies an output voltage of the integration circuit to a specified amplitude, an amplifier/attenuator to which a voltage of the voltage divider, which is an output of the voltage divider, is input and that amplifies or attenuates the voltage of the voltage divider to the specified amplitude, and an adder that adds an output voltage of the analog circuit and an output voltage of the amplifier/attenuator.
摘要:
The current detection device includes a plurality of air-cored coils respectively attached to conductors for a plurality of phases, which are supported by an insulator and housed in a ferromagnetic tank a plurality of output-voltage detection circuits that detect output voltages of the air-cored coils for respective phases; and a correction processing circuit that obtains, by dividing the output voltages of the air-cored coils for respective phases by transformation ratios of the air-cored coils, current value levels, which are temporary values of currents flowing in the conductors for respective phases, calculates the output-voltage correction values for respective phases according to the current value levels of respective phases, and calculates and outputs current flowing in the conductors for respective phases on the basis of the output-voltage correction values.
摘要:
In a voltage detection device for a transforming apparatus, a voltage divider is constituted by providing an intermediate electrode between a central conductor and a tank of the transforming apparatus, to detect a voltage E1 of the central conductor based on a voltage E2 of the voltage divider. The voltage detection device for a transforming apparatus includes an incomplete integration circuit having a reverse characteristic to an input/output voltage amplitude ratio-frequency characteristic of a high-pass filter formed by a floating electrostatic capacitance between the central conductor and the intermediate electrode, an earth electrostatic capacitance between the intermediate electrode and the tank, and a voltage dividing resistor connected in parallel to the earth electrostatic capacitance, and a signal processing circuit that outputs a value based on an output voltage E3 of the incomplete integration circuit as the voltage E1 of the central conductor.
摘要:
To provide a method of efficiently separate protective components of Bordetella pertussis. On the basis of differences in adsorbability to calcium phosphate gel formed by adding calcium ions to a Bordetella pertussis culture in the presence of excess phosphate ions, protective components of Bordetella pertussis are separated from the Bordetella pertussis culture. Traditionally, protective components of Bordetella pertussis have been separated using different purification methods for the respective components. According to the present invention, the use of the same means of purification for all subject components makes it possible to purify each component with high efficiency and high recovery rate, an aspect very advantageous for industrial production. It is also possible to efficiently produce an improved purified pertussis component vaccine comprising an effective combination of pertussis filamentous hemagglutinin (FHA), pertactin (PRN, 69K-OMP), pertussis fimbriae (FIM) and pertussis toxin (PT).
摘要:
Fine composite metal particle comprising a metal core and a coating layer of carbon, and being obtained by reducing metal oxide powder with carbon powder.
摘要:
A polishing composition comprising 0.03 to 0.5% by weight of an organic acid or a salt thereof, an abrasive and water, wherein the abrasive has a surface potential of from −140 to 200 mV; a roll-off reducing agent comprising an inorganic compound having a property of controlling a surface potential of an abrasive in a polishing composition, wherein a surface potential of the abrasive in a standard polishing composition is controlled to −110 to 250 mV by the presence of the inorganic compound, wherein the standard polishing composition is prepared which comprises 20 parts by weight of an abrasive, the abrasive being high-purity alumina having Al2O3 purity of 98.0% by weight or more composed of α-type corundum crystal, 1 part by weight of citric acid, 78 parts by weight of water and 1 part by weight of an inorganic compound. The polishing composition or the roll-off reducing agent composition can be favorably used in polishing the substrate for precision parts.
摘要:
The present invention provides a polishing composition containing an organic nitrogen-containing compound, an organic polybasic acid, an abrasive, and water, wherein the organic nitrogen-containing compound has in the molecule two or more amino groups, two or more imino groups, or one or more amino groups and one or more imino groups; a method for manufacturing a substrate with the polishing composition; and a method for reducing surface stains of a substrate with the polishing composition. The polishing composition can be suitably used, for example, in the manufacturing step for a substrate for a hard disk such as a memory hard disk.
摘要:
A mobile type radiography apparatus having a truck movable on a floor, an X-ray control unit mounted on the truck, a first supporting arm having two branches supporting an X-ray generator and an X-ray image reception device at mutually opposite positions to sandwich a subject between the X-ray generator and the X-ray image reception device, an arm supporting mechanism having a second arm extending toward an outside of the branches of the first supporting arm and supporting the first supporting arm so as to be movable. A supporting pole mechanism is mounted on the truck so as to extend upwardly therefrom and an arm motion mechanism is located between the arm supporting mechanism and the supporting pole mechanism for linearly supporting the arm supporting mechanism so as to enable movement of the first supporting arm in horizontal directions perpendicular to longitudinal directions of the second arm.
摘要:
A polishing composition comprising a chelating compound or a salt thereof; a partially esterified product and/or partially etherified product of a polyhydric alcohol compound; and water; a polishing composition comprising water, an abrasive, an intermediate alumina, and a chelating compound or a salt thereof, wherein the content of the intermediate alumina is from 1 to 50 parts by weight, based on 100 parts by weight of the abrasive; and a polishing composition comprising water, an abrasive, an intermediate alumina, a chelating compound or a salt thereof, and a partially esterified product and/or partially etherified product of a polyhydric alcohol compound, wherein the content of the intermediate alumina is from 1 to 50 parts by weight, based on 100 parts by weight of the abrasive. By using the polishing composition, the polishing rate can be increased, and the surface roughness can be lowered, without causing defects such as scratches and pits on the surface of an object to be polished.